-9y-45=-2(y-9)

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Solution for -9y-45=-2(y-9) equation: 



-9y-45=-2(y-9)

We move all terms to the left:

-9y-45-(-2(y-9))=0



We calculate terms in parentheses: -(-2(y-9)), so:

-2(y-9)

We multiply parentheses

-2y+18

Back to the equation:

-(-2y+18)



We get rid of parentheses

-9y+2y-18-45=0

We add all the numbers together, and all the variables

-7y-63=0

We move all terms containing y to the left, all other terms to the right

-7y=63

y=63/-7

y=-9

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